FZUS53 KDLH 171825 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 125 PM CDT Tue Mar 17 2026 For waters within five nautical miles of shore on Lake Superior. Waves are the significant wave height - the average of the highest 1/3 of the wave spectrum. Occasional wave height is the average of the highest 1/10 of the wave spectrum. LSZ140-172200- Grand Portage to Grand Marais MN- 125 PM CDT Tue Mar 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 10 PM CDT THIS EVENING THROUGH WEDNESDAY AFTERNOON... .REST OF TODAY...Southwest wind 5 to 10 knots. Partly sunny. Waves 1 to 2 feet. .TONIGHT...South wind 15 to 20 knots with gusts to around 25 knots. Chance of snow through the night. Slight chance of very light freezing drizzle after midnight. Waves 1 to 2 feet building to 4 to 6 feet in the late evening and overnight. Waves occasionally to 7 feet. .WEDNESDAY...Southwest wind 15 to 20 knots. Gusts up to 25 knots decreasing to 20 knots late in the afternoon. Slight chance of snow and very light freezing drizzle in the morning. Waves 4 to 6 feet. Waves occasionally to 7 feet. .WEDNESDAY NIGHT...Southwest wind 10 to 15 knots with gusts to around 20 knots becoming north 5 to 10 knots early in the morning. Slight chance of rain and light freezing rain after midnight. Waves 1 to 3 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ141-172200- Grand Marais to Taconite Harbor MN- 125 PM CDT Tue Mar 17 2026 .REST OF TODAY...Southwest wind 5 to 10 knots. Partly sunny. Waves 1 foot or less. .TONIGHT...South wind 10 to 15 knots. Gusts up to 20 knots late in the evening increasing to 25 knots, then decreasing to 20 knots early in the morning. Snow in the evening, then chance of snow and slight chance of very light freezing drizzle after midnight. Waves 1 to 2 feet building to 2 to 4 feet after midnight. .WEDNESDAY...Southwest wind 10 to 15 knots. Gusts up to 20 knots until late afternoon. Slight chance of very light freezing drizzle and snow in the morning. Waves 1 to 3 feet. .WEDNESDAY NIGHT...West wind 5 to 10 knots becoming north early in the morning. Slight chance of rain through the night. Slight chance of light freezing rain after midnight. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ142-172200- Taconite Harbor to Silver Bay Harbor MN- 125 PM CDT Tue Mar 17 2026 .REST OF TODAY...Southwest wind 5 to 10 knots. Partly sunny. Waves 1 foot or less. .TONIGHT...South wind 10 to 15 knots. Gusts up to 20 knots in the late evening and overnight. Snow likely in the evening, then chance of snow and slight chance of very light freezing drizzle after midnight. Waves 1 to 2 feet. .WEDNESDAY...Southwest wind 5 to 10 knots. Slight chance of very light freezing drizzle in the morning. Waves 1 to 2 feet. .WEDNESDAY NIGHT...Southwest wind 5 to 10 knots becoming north early in the morning. Slight chance of rain in the evening, then chance of rain and slight chance of light freezing rain after midnight. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ143-172200- Silver Bay Harbor to Two Harbors MN- 125 PM CDT Tue Mar 17 2026 .REST OF TODAY...Southwest wind 5 to 10 knots. Slight chance of snow late. Waves 1 foot or less. .TONIGHT...South wind 10 to 15 knots. Gusts up to 20 knots in the late evening and overnight. Snow in the evening, then chance of snow and slight chance of very light freezing drizzle after midnight. Waves 1 to 3 feet. .WEDNESDAY...Southwest wind 5 to 10 knots. Slight chance of very light freezing drizzle in the morning. Slight chance of rain in the afternoon. Waves 1 to 2 feet. .WEDNESDAY NIGHT...Southwest wind 5 to 10 knots becoming north early in the morning. Chance of rain through the night. Slight chance of light freezing rain after midnight. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ144-172200- Two Harbors to Duluth MN- 125 PM CDT Tue Mar 17 2026 .REST OF TODAY...Southwest wind 5 to 10 knots. Chance of snow late. Waves 1 foot or less. .TONIGHT...South wind 10 to 15 knots. Gusts up to 20 knots in the late evening and early morning. Snow likely in the evening, then chance of snow and slight chance of very light freezing drizzle after midnight. Waves 1 to 2 feet. .WEDNESDAY...Southwest wind 5 to 10 knots. Slight chance of very light freezing drizzle in the morning. Waves 1 to 2 feet. .WEDNESDAY NIGHT...Southwest wind 5 to 10 knots becoming northwest early in the morning. Chance of rain. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ145-172200- Duluth MN to Port Wing WI- 125 PM CDT Tue Mar 17 2026 .REST OF TODAY...Southwest wind 5 to 10 knots. Chance of snow late. Waves 1 foot or less. .TONIGHT...South wind 10 to 15 knots. Gusts up to 20 knots in the late evening and overnight. Chance of snow through the night. Slight chance of very light freezing drizzle after midnight. Waves 1 to 2 feet. .WEDNESDAY...Southwest wind 10 to 15 knots. Slight chance of very light freezing drizzle in the morning. Slight chance of rain in the afternoon. Waves 1 to 2 feet. .WEDNESDAY NIGHT...Southwest wind 5 to 10 knots becoming northwest early in the morning. Chance of rain. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ146-172200- Port Wing to Sand Island WI- 125 PM CDT Tue Mar 17 2026 .REST OF TODAY...Southwest wind 5 to 10 knots. Mostly cloudy. Waves 1 foot or less. .TONIGHT...South wind 10 to 15 knots. Gusts up to 20 knots in the late evening and overnight. Snow likely in the evening, then chance of snow and slight chance of very light freezing drizzle after midnight. Waves 1 to 2 feet. .WEDNESDAY...Southwest wind 10 to 15 knots easing to 10 knots late in the afternoon. Slight chance of very light freezing drizzle in the morning. Waves 1 to 2 feet. .WEDNESDAY NIGHT...Southwest wind 5 to 10 knots becoming northwest early in the morning. Chance of rain. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ147-172200- Sand Island to Bayfield WI- 125 PM CDT Tue Mar 17 2026 .REST OF TODAY...Southwest wind 5 knots. Mostly cloudy. Waves 1 foot or less. .TONIGHT...South wind 5 to 10 knots. Gusts up to 20 knots after midnight. Snow likely in the evening, then chance of snow and slight chance of very light freezing drizzle after midnight. Waves 1 to 2 feet. .WEDNESDAY...Southwest wind 5 to 10 knots. Gusts up to 20 knots early in the morning. Slight chance of very light freezing drizzle in the morning. Waves 1 to 2 feet. .WEDNESDAY NIGHT...Southwest wind 5 to 10 knots becoming northwest early in the morning. Chance of rain. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ150-172200- Outer Apostle Islands Beyond 5 NM from Mainland- 125 PM CDT Tue Mar 17 2026 .REST OF TODAY...Southwest wind 5 to 10 knots. Mostly cloudy. Waves 1 foot or less. .TONIGHT...South wind 10 to 15 knots. Gusts up to 20 knots in the late evening and overnight. Chance of snow through the night. Slight chance of very light freezing drizzle after midnight. Waves 1 to 2 feet building to 1 to 3 feet after midnight. .WEDNESDAY...Southwest wind 10 to 15 knots. Gusts up to 20 knots in the morning. Slight chance of very light freezing drizzle in the morning. Waves 1 to 3 feet. .WEDNESDAY NIGHT...Southwest wind 5 to 10 knots becoming northwest early in the morning. Chance of rain through the night. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ148-172200- Oak Point to Saxon Harbor WI- 125 PM CDT Tue Mar 17 2026 .REST OF TODAY...Southwest wind 5 to 10 knots. Mostly cloudy. Waves 1 to 2 feet. .TONIGHT...South wind 10 to 15 knots. Gusts up to 20 knots in the late evening and overnight. Chance of snow in the evening. Slight chance of very light freezing drizzle and snow after midnight. Waves 1 to 2 feet. .WEDNESDAY...Southwest wind 10 to 15 knots with gusts to around 20 knots easing to 5 to 10 knots in the afternoon. Slight chance of very light freezing drizzle in the morning. Waves 1 to 2 feet. .WEDNESDAY NIGHT...Southwest wind 5 to 10 knots becoming west early in the morning. Chance of rain through the night. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes WFO DLH